PYSEC-2026-3483 MCP Python SDK: WebSocket server transport does not support Host/Origin validation

Summary In affected versions, the deprecated WebSocket server transport mcp.server.websocket.websocketserver accepted the WebSocket handshake without applying any Host or Origin header validation. The TransportSecuritySettings mechanism that the SSE and Streamable HTTP transports use for this...

MCP Python SDK: WebSocket server transport does not support Host/Origin validation

SummaryIn affected versions, the deprecated WebSocket server transport mcp.server.websocket.websocketserver accepted the WebSocket handshake without applying any Host or Origin header validation. The TransportSecuritySettings mechanism that the SSE and Streamable HTTP transports use for this...

CVE-2026-64813

In JetBrains IntelliJ IDEA before 2026.2 unauthorized settings modification was possible in a Remote Development session...

CVE-2026-64813

JetBrains IntelliJ IDEA prior to version 2026.2 contains a vulnerability where unauthorized settings modification is possible during Remote Development sessions. The issue is indicated as a CRITICAL impact (CVSS 3.1: AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H) with network attack vector, no privileges r...

EUVD-2026-48238

In JetBrains IntelliJ IDEA before 2026.2 unauthorized settings modification was possible in a Remote Development session...

CVE-2026-64813

In JetBrains IntelliJ IDEA before 2026.2 unauthorized settings modification was possible in a Remote Development session...

Astra Linux – Vulnerability in Chromium

Insufficient policy enforcement in Content Settings in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to bypass discretionary access control via a crafted HTML page. Chromium security severity: Low...

CVE-2026-9577

The Post Status Notifier Lite WordPress plugin before 1.13.0 does not properly escape the mod URL parameter before reflecting it into the admin settings page admin.php?page=post-status-notifier-lite, leading to a Reflected Cross-Site Scripting vulnerability that fires in the administrator's sessi...

EUVD-2026-47938

An Incorrect Authorization vulnerability in Linux-Gaming PortProtonQt allows any users to mount and unmount arbitrary file systems and modify the network configuration via NetworkManager. This issue affects PortProtonQt before 0d0f0950ebd948cdf82e8c3e1ebd2bcb9b8bafbe...

CVE-2026-9577 Post Status Notifier Lite < 1.13.0 - Reflected XSS via mod Parameter

The Post Status Notifier Lite WordPress plugin before 1.13.0 does not properly escape the mod URL parameter before reflecting it into the admin settings page admin.php?page=post-status-notifier-lite, leading to a Reflected Cross-Site Scripting vulnerability that fires in the administrator's sessi...

CVE-2026-9577

The Post Status Notifier Lite WordPress plugin (before 1.13.0) is affected. The vulnerability arises because the plugin does not properly escape the mod URL parameter before reflecting it into the admin settings page (admin.php?page=post-status-notifier-lite), enabling a Reflected Cross-Site Scri...

PT-2026-63967

Name of the Vulnerable Software and Affected Versions JetBrains IntelliJ IDEA versions prior to 2026.2 Description An issue exists in Remote Development sessions that allows for the unauthorized modification of settings. Recommendations Update JetBrains IntelliJ IDEA to version 2026.2...

PT-2026-64093

Summary In affected versions, the deprecated WebSocket server transport mcp.server.websocket.websocket server accepted the WebSocket handshake without applying any Host or Origin header validation. The TransportSecuritySettings mechanism that the SSE and Streamable HTTP transports use for this...

GHSA-PPPJ-HQ3G-57PJ JupyterLab: Cross-site scripting (XSS) via crafted settings file (`overrides.json`)

JupyterLab 4.5+ allows notebook settings to be shared and applied through an overrides.json file using the Import button in the Settings Editor. Certain notebook display settings were not properly validated before being applied. As a result, a crafted settings file could contain hidden instructio...

JupyterLab: Cross-site scripting (XSS) via crafted settings file (`overrides.json`)

JupyterLab 4.5+ allows notebook settings to be shared and applied through an overrides.json file using the Import button in the Settings Editor. Certain notebook display settings were not properly validated before being applied. As a result, a crafted settings file could contain hidden instructio...

EUVD-2026-46132

Netty SPDY SETTINGS frame count materializes unbounded settings map...

Netty SPDY SETTINGS frame count materializes unbounded settings map

Summary Netty's SPDY SETTINGS decoder accepts a peer-declared SETTINGS entry count up to the 24-bit frame-length limit and materializes every unique setting ID in DefaultSpdySettingsFrame without an implementation-level count cap. A remote SPDY/3.1 peer can send one syntactically valid roughly 2...

GHSA-6JQX-86GH-F27W Netty SPDY SETTINGS frame count materializes unbounded settings map

Summary Netty's SPDY SETTINGS decoder accepts a peer-declared SETTINGS entry count up to the 24-bit frame-length limit and materializes every unique setting ID in DefaultSpdySettingsFrame without an implementation-level count cap. A remote SPDY/3.1 peer can send one syntactically valid roughly 2...

Allocation of Resources Without Limits or Throttling

Overview io.netty:netty-codec-http is a network application framework for rapid development of maintainable high performance protocol servers & clients. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling through the processing of SPDY SETTINGS...

CVE-2026-14881

When importing connections in Compass it is possible to override some connection options that are otherwise can't be changed via connection form. In particular it is possible to provide a custom browser open command for OIDC auth flow that is usually can be set only globally via Compass settings...